Hi! Thank you for your feedback. Yes, we are currently working on improving Journey mode - you can read more about it in the latest dev diary.
Regarding crashes - we have heard about this a few times, but no error logs have been sent to us yet. Because of this, we have no way to understand the problem.
After the next crash, if you have the opportunity, please send us the log file on Discord.It's located in C:\Users[USER_NAME]\AppData\LocalLow\Wild Pear\Magic Academy and named Player.log and Player-prev.log.